Test Mode Procedure

TIRE AND WHEEL: TIRE PRESSURE WARNING SYSTEM:

TEST MODE PROCEDURE

1. ENTER TEST MODE
HINT:
- Operation of the tire pressure warning reset switch can be checked in TEST MODE.
- During TEST MODE, the system is not initialized by pushing the tire pressure warning reset switch. The circuit of the tire pressure warning reset switch can be inspected during this mode.

(a) Make sure that the ignition switch is off.
(b) Connect the Techstream to the DLC3.
(c) Turn the ignition switch to the ON position.
(d) Turn the Techstream on.






(e) Check that the tire pressure warning light comes on for 3 seconds and then goes off.

(f) Enter the following menus: Chassis / Tire Pressure Monitor / Utility / Signal Check.






(g) Confirm that the tire pressure warning light on the combination meter blinks at 0.125 second intervals and "TEST MODE" appears on the multi-information display.

2. PERFORM SIGNAL CHECK
HINT:
- When entering signal check mode, the tire pressure warning ECU sets all the signal check DTCs first.
After completing signal check for each inspection item, the DTCs for systems that are determined to be normal by the tire pressure warning ECU will be erased.
The DTCs for other inspection items may not be erased when only a certain signal is inspected.
- When signal check returns to normal mode, all the signal check DTCs will be erased.

(a) Make sure that the ignition switch is off.
(b) Connect the Techstream to the DLC3.
(c) Turn the ignition switch to the ON position.
(d) Turn the Techstream on.
(e) Enter the following menus: Chassis / Tire Pressure Monitor / Utility / Signal Check.
HINT: Every time the test mode DTC erasure conditions are satisfied, the tire pressure warning light comes on for 1 second. Then, the tire pressure warning light blinks at 0.125 second intervals.

(f) Drive the vehicle at 20 km/h (12 mph) or more for 3 seconds or more to check the vehicle speed signal (C2191/91).
(g) Rapidly reduce the tire pressure for each wheel at least 40 kPa (0.4 kgf/cm2, 5.8 psi) within 30 seconds to check the transmitter data (C2181/81 to C2185/85).
HINT: The transmitter ID can be transmitted by rapidly reducing the tire pressure.

(h) Turn the select switch from off (main) to on (second) and then to off (main) to check the select switch signal (C2192/92).
(i) Check that the tire pressure warning system test mode DTCs are erased.






(j) Check the tire pressure warning reset switch.
(1) Press the tire pressure warning reset switch.
(2) Check the tire pressure warning indicator light.






(k) Result
HINT: After the signal check is completed, check for a signal check DTC to confirm the system status.





(l) End of SIGNAL CHECK
(1) After completing the test mode (SIGNAL CHECK), turn the ignition switch off and disconnect the tester.
(m) DTC of SIGNAL CHECK (TEST DIAGNOSIS)
(1) If a trouble code is displayed during the test mode DTC check, check the circuit listed for that code. For details of each code, refer to the "See procedure" below.